* {
  padding: 0;
  margin: 0;
}

html {
  height: 100%;
}

/* rgb(51, 51, 51)

rgb(73, 73, 73)

rgb(239,77,138) */

body {
  background-color: rgb(51, 51, 51);
  font-family: 'Courier New', Courier, monospace;
}

.panel {
  text-align: center;
  padding: 10% 0;
}

.panel .btn-container {
  display: inline-block;
}

.panel .btn-container input {
  border: 0;
  outline: 0;
  height: 60px;
  width: 120px;
  border-radius: 30px;
  background-color: rgb(104, 101, 101);
  color: #fff;
  font-size: 20px;
  padding: 0 20px;
  vertical-align: middle;
  transition: .2s;

}

.panel .btn-container .btn {
  display: inline-block;
  height: 60px;
  background-color: rgb(239,77,138);
  vertical-align: middle;
  line-height: 60px;
  font-size: 20px;
  color: #fff;
  font-weight: bold;
  width: 170px;
  border-radius: 30px;
  margin-left: -170px;
  cursor: pointer;
  transition: .2s;
}

.panel .btn-container:hover input{
  width: 400px;
  animation: inputAction .4s ease-out;
}

.panel .btn-container:hover .btn{
  width: 100px;
  height: 60px;
  margin-left: -100px;
  animation: btnAction .4s ease-out;
}

@keyframes inputAction {
  0% {
    width: 400px;
  }
  60% {
    width: 450px;
  }
  100% {
    width: 400px;
  }
}

@keyframes btnAction {
  0% {
    width: 100px;
    height: 60px;
    margin-left: -100px;
  }
  60% {
    width: 60px;
    height: 60px;
    margin-left: 10px;
  }
  100% {
    width: 100px;
    height: 60px;
    margin-left: -100px;
  }
}


::-webkit-input-placeholder {
  color: #fff;
  font-size: 20px;
  font-family: 'Courier New', Courier, monospace;
}